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OTC 7L 15s
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Omnitetrachordal MODMOS scale
7L+15s
22 tones (9+4+9)
Porcupine
; 3 forms
P
= 2.3809207248
Q
= 7.6586615703 (4/3 = 3L+5.5s)
L = 54.55 to 171.43 cents (89.68 cents @ P, 133.95 cents @ Q)
s = 0.00 to 54.55 cents (38.15 cents @ P, 17.49 cents @ Q)
9/8 = L+3s (171.43 to 218.18 cents)
4/3 = 3L+6s (490.91 to 514.29 cents)
MOS generator = L+2s (163.64 to 171.43 cents)
notable EDOs: 29, 36, 43, 50, 51
LssLssLssLssLssLssLsss
(MOS, not OTC)
|| ||
LssLsLsssLssLsLsssLsss
(OTC MODMOS, form 1) - gc 16,2,2; 2o
LssLssLssLssLssLssLsss
(MOS, not OTC)
|| ||
LsssLsLssLsssLsLssLsss
(OTC MODMOS, form 2) - gc 16,2,2; 2o
LssLssLssLssLssLssLsss
(MOS, not OTC)
|||| ||||
LsssLLsssLsssLLsssLsss
(OTC MODMOS, form 3) - gc 10,2,2,2,2; 4o
LssLsLsssLssLsLsssLsss
(form 1)
|||| ||||
LsssLsLssLsssLsLssLsss
(form 2)
|| ||
LsssLLsssLsssLLsssLsss
(form 3)
|| ||
LssLsLsssLssLsLsssLsss
(form 1)
all modes, form 1:
LssLsLsss LssLsLsss Lsss
ssLsLsssL ssLsLsssL sssL
sLsLsssLs sLsLsssLs ssLs
LsLsssLss LsLsssLss sLss
sLsssLssL sLss sLsssLssL
LsssLssLs Lsss LsssLssLs
sssLssLsL sssL sssLssLsL
ssLssLsLs ssLs ssLssLsLs
sLssLsLss sLss sLssLsLss
LssLsLsss Lsss LssLsLsss
ssLsLsssL sssL ssLsLsssL
sLsLsssLs ssLs sLsLsssLs
LsLsssLss sLss LsLsssLss
sLss sLsssLssL sLsssLssL
Lsss LsssLssLs LsssLssLs
sssL sssLssLsL sssLssLsL
ssLs ssLssLsLs ssLssLsLs
sLss sLssLsLss sLssLsLss
sLsssLssL sLsssLssL sLss
Lsss LssLsLsss LssLsLsss
LsssLssLs LsssLssLs Lsss
sssL ssLsLsssL ssLsLsssL
sssLssLsL sssLssLsL sssL
ssLs sLsLsssLs sLsLsssLs
ssLssLsLs ssLssLsLs ssLs
sLss LsLsssLss LsLsssLss
sLssLsLss sLssLsLss sLss
all modes, form 2:
Lsss LsLssLsss LsLssLsss
LsssLsLss LsssLsLss Lsss
sssL sLssLsssL sLssLsssL
sssLsLssL sssLsLssL sssL
ssLs LssLsssLs LssLsssLs
ssLsLssLs ssLsLssLs ssLs
sLsLssLss sLsLssLss sLss
LsLssLsss LsLssLsss Lsss
sLssLsssL sLssLsssL sssL
LssLsssLs LssLsssLs ssLs
ssLsssLsL ssLs ssLsssLsL
sLsssLsLs sLss sLsssLsLs
LsssLsLss Lsss LsssLsLss
sssLsLssL sssL sssLsLssL
ssLsLssLs ssLs ssLsLssLs
sLsLssLss sLss sLsLssLss
LsLssLsss Lsss LsLssLsss
sLssLsssL sssL sLssLsssL
LssLsssLs ssLs LssLsssLs
ssLs ssLsssLsL ssLsssLsL
sLss sLsssLsLs sLsssLsLs
Lsss LsssLsLss LsssLsLss
sssL sssLsLssL sssLsLssL
ssLs ssLsLssLs ssLsLssLs
ssLsssLsL ssLsssLsL ssLs
sLss sLsLssLss sLsLssLss
sLsssLsLs sLsssLsLs sLss
all modes, form 3:
Lsss LLsssLsss LLsssLsss
LsssLLsss LsssLLsss Lsss
sssL LsssLsssL LsssLsssL
sssLLsssL sssLLsssL sssL
ssLLsssLs ssLLsssLs ssLs
sLLsssLss sLLsssLss sLss
LLsssLsss LLsssLsss Lsss
LsssLsssL Lsss LsssLsssL
LsssLsssL LsssLsssL sssL
sssLsssLL sssL sssLsssLL
ssLsssLLs ssLs ssLsssLLs
sLsssLLss sLss sLsssLLss
LsssLLsss Lsss LsssLLsss
sssLLsssL sssL sssLLsssL
ssLLsssLs ssLs ssLLsssLs
sLLsssLss sLss sLLsssLss
LLsssLsss Lsss LLsssLsss
Lsss LsssLsssL LsssLsssL
LsssLsssL sssL LsssLsssL
sssL sssLsssLL sssLsssLL
ssLs ssLsssLLs ssLsssLLs
sLss sLsssLLss sLsssLLss
Lsss LsssLLsss LsssLLsss
LsssLsssL LsssLsssL Lsss
sssL sssLLsssL sssLLsssL
sssLsssLL sssLsssLL sssL
ssLs ssLLsssLs ssLLsssLs
ssLsssLLs ssLsssLLs ssLs
sLss sLLsssLss sLLsssLss
sLsssLLss sLsssLLss sLss
See also
Omnitetrachordality
Gallery of omnitetrachordal scales
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7L+15s
22 tones (9+4+9)
Porcupine; 3 forms
P = 2.3809207248
Q = 7.6586615703 (4/3 = 3L+5.5s)
L = 54.55 to 171.43 cents (89.68 cents @ P, 133.95 cents @ Q)
s = 0.00 to 54.55 cents (38.15 cents @ P, 17.49 cents @ Q)
9/8 = L+3s (171.43 to 218.18 cents)
4/3 = 3L+6s (490.91 to 514.29 cents)
MOS generator = L+2s (163.64 to 171.43 cents)
notable EDOs: 29, 36, 43, 50, 51
LssLssLssLssLssLssLsss (MOS, not OTC)
|| ||
LssLsLsssLssLsLsssLsss (OTC MODMOS, form 1) - gc 16,2,2; 2o
LssLssLssLssLssLssLsss (MOS, not OTC)
|| ||
LsssLsLssLsssLsLssLsss (OTC MODMOS, form 2) - gc 16,2,2; 2o
LssLssLssLssLssLssLsss (MOS, not OTC)
|||| ||||
LsssLLsssLsssLLsssLsss (OTC MODMOS, form 3) - gc 10,2,2,2,2; 4o
LssLsLsssLssLsLsssLsss (form 1)
|||| ||||
LsssLsLssLsssLsLssLsss (form 2)
|| ||
LsssLLsssLsssLLsssLsss (form 3)
|| ||
LssLsLsssLssLsLsssLsss (form 1)
all modes, form 1:
all modes, form 2:
all modes, form 3:
See also